科研之友
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摘要
We argue that recent results in string perturbation theory indicate that the four-graviton amplitude of four-dimensional N=8 supergravity might be ultraviolet finite up to eight loops. We similarly argue that the h-loop M-graviton amplitude might be finite for h < 7+M/2.
- 出版日期2007-3-30
- 单位中国地震局
